RF430FRL152H: How to use spi and RF function in the same time?

Huaxuan Cai

Part Number: RF430FRL152H

Hello all,

I am now using SPI bus on RF430FRL152H as a slave to recieve data from another MCU, and I want to send these data to reader via NFC using RF13M module.

I have read that the provided project "RF430FRL15xH NFC Projects" and section 3.2.3 in FAQ said that this project "only uses the ROM NFC stack and all other ROM functionality is disabled......eUSCI functionality can be controlled by the user firmware in FRAM". Does it mean that if I want to add my own application code based on "NFC project", I have to put SPI related code to FRAM? The question is I don't know how to do this, and I didn't find the tutorial about moving code to FRAM.

Or can I create a new project which both control SPI (eUSCI module) and RF13M in ROM functionality? But will it be hard to initiate the RF13M module and implement my aim? I am a fresher to NFC and I feel confused about where to start.

Hope to receive your help,

Sincerely,

Huaxuan Cai

11 months ago

0 Andreas Mueller 11 months ago

TI__Genius 12995 points

Hello Customer, thank you for your question and interest in our products.

The forum support of this product has been reduced to first reference our existing documentation and collateral. For support, please take a look to the “Similar Topics” section at the lower right of the thread page. In addition, please consult the existing collateral in the “Technical Documentation” section of the RF430FRL152H product web page along with the Frequently Asked Question document. Alternatively, you can use the search engine of your choice to look for related E2E threads. With each of these resources we believe it will help with your question.

0 Huaxuan Cai 11 months ago in reply to Andreas Mueller

Prodigy 30 points

Hello Mueller,

I have searched on the forum and found this similar but un-solved questionhttps://e2e.ti.com/support/wireless-connectivity/other-wireless-group/other-wireless/f/other-wireless-technologies-forum/1192379/rf430frl152h-can-i-use-i2c-and-rf-together-in-rf430frl152h?tisearch=e2e-sitesearch&keymatch=RF430FRL152H%2520RF#. In the FAQ and firmware users guide I can't find tutorial for my request. I hope you can offer some help for my question.

Really look forward to your reply,

Sincerely,

Huaxuan Cai

0 Huaxuan Cai 11 months ago in reply to Andreas Mueller

Prodigy 30 points

Hello Mueller,

I have looked into the code that TI offered(the "NFC-only" one), and I find that the interrupt function is pointed to an address in ROM. Does this mean that the RF-rx interrupt function is set in ROM and we can't and shouldn't change? But how can I know the logic of it and how should I put my data that aimed to transfer via NFC?

looking forward to your reply,

Sincerely,

Huaxuan Cai

+1 Andreas Mueller 10 months ago

TI__Genius 12995 points

Hello Huaxuan,

the RF430FRL15xH Firmware User's Guide is describing the different SPI use cases of the RF430FRL152H.

External sensors with a SPI interface can be read by the ROM firmware (see chapter 2.4 in the RF430FRL15xH Firmware User's Guide and chapter 2.9 in the FAQ document).
The SPI interface can also be used for interfacing a host controller to the RF430FRL152H (see chapter 5 in the RF430FRL15xH Firmware User's Guide).
If some other functionality is envisioned then it would be possible to write an own SPI interrupt service routine in FRAM and the corresponding interrupt vector needs to point to the users function in FRAM. Please refer to chapter 6.4 in the datasheet and chapter 11 of the technical reference manual. The MSP430 Academy and the multiple code examples in MSPWARE can help you learning MSP430 code writing.

Probably the second use case fits most for your application.

Let me know if you have any questions.

Best regards,

Andreas.

0 Huaxuan Cai 10 months ago in reply to Andreas Mueller

Prodigy 30 points

Hello Mueller,

Thank you so much for your reply. While I was waiting for your help, I figured out how to achieve my aim, and it fits the second way you mentioned.

Anyway, your help and answer is really appreciated. Thank you afterall.

Sincerely,

Huaxuan Cai.

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RF430FRL152H: How to use spi and RF function in the same time?